Hi Mollyanne! Warm welcome to C&NN Connect. I'm glad you found us and hope you make yourself at home in discussions and groups. I really enjoyed reading your bio and know you'll have a lot to offer the forum, in addition to meeting kindred spirits.
Our Natural Teachers Network will probably interest you, among others. That's one of the places where I've seen discussions of gardens in schools. There are a lot more places where you'll find relevant discussions and community. I hope you'll share your activities ideas and photos with us and find this a rich source of resources. Hope to see you here again soon. (I love Sonoma, by the way. I'm in Marin.)